SKU: 1336656922

SparkFun Mux Shield II Shields

Sale price$1993.50 Regular price$2215.00
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Description

SparkFun Mux Shield II ShieldsSometimes youve got way too many inputs, or outputs or both. How are you going to get them all connected to your Arduino? The Mux Shield, thats how. The Mux Shield II from Mayhew Labs is an upgrade on their previous Mux Shield which makes it possible to route up to 48 analog and digital inputs or digital outputs to and from your Arduino board. The Mux Shield II improves on the original by moving all of the I O pins to the end of the board, thus

Sometimes you’ve got way too many inputs, or outputs… or both. How are you going to get them all connected to your Arduino? The Mux Shield, that’s how. The Mux Shield II from Mayhew Labs is an upgrade on their previous Mux Shield which makes it possible to route up to 48 analog and digital inputs or digital outputs to and from your Arduino board.

The Mux Shield II improves on the original by moving all of the I/O pins to the end of the board, thus allowing you to add one big connector and hook up a ribbon wire or similar cable solution. This also gets the pins out of the way so that the Mux Shield can be in the middle of a stack, with a shield on top of it, and you can still get to the I/O pins. The pins are arranged into three rows of sixteen and each row can be individually set as a digital input, a digital output or an analog input from the Arduino sketch! Further increasing the flexibility of the board, Mayhew Labs added solder jumpers to the bottom of the board that allow you to shut off this software control feature and “hard wire” the functionality of each row, freeing up the associated Arduino pins for other shields in the stack.

The Mux Shield uses TI 74HC4067 analog multiplexers (mux?s) for input functionality and TI 74HC595 shift registers for output functionality. Don’t worry if that’s jibberish to you, the included Arduino library wraps it up and makes it very easy-to-use.

The shield comes without any headers so be sure to pick up some stackable shield headers!

Features:

  • Control up to 48 Pins from your Arduino!
  • Multiple modes:
    • Analog Input
    • Digital Input
    • Digital Output
  • Solder Jumpers for Hard-Wired Mode Select
  • Arduino Library and Example Code Available

Documents:

Replaces:DEV-09832

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SKU: 1336656922

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San Leandro, US
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Will be a favorite go to if…
Color: White, Size: X-Large
Great soft easy wear shirt. Through no fault of its own, if you have a big belly you might want to size up. I’m not going to punish the shirt with a star deduction for that. A slight belly will happily put you in your regular size category. Other than that, this will probably be one of your reach for fav’s.
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Reviewed in the United States on December 25, 2025
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Kevin
Louisville, US
★★★★★ 3
Awkward fit
Color: Light Khaki, Size: Medium
A bit of an awkward fit in terms of size of arms, chest, and stomach. If between sizes I would probably recommend sizing down.
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Reviewed in the United States on March 15, 2026
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Paulette
Charlottesville, US
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Would recommend
Husband's XL fit him nicely, true to size. Nice navy color. Well made, light and comfortable. Good price.
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Reviewed in the United States on October 30, 2025
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Spoil 'Em Mary
Birmingham, US
★★★★★ 5
Good quality
Size: X-Large, Color: Blue
Looked great, good and warm. Bought to donate to vets so felt good about quality.
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Reviewed in the United States on December 23, 2025
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Tara W.
Omaha, US
★★★★★ 5
Unisex
Great for women and men. Crotch isn’t too low and not too baggy for women.
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Reviewed in the United States on October 14, 2025

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